Ureaplasma and Fertility
- Rachael Robinson
- 1 day ago
- 5 min read
Table of Contents
Quick Summary
Ureaplasma is a common bacterium that can live in the reproductive tract and often causes no symptoms.
However, it can create inflammation, disrupt the vaginal microbiome, and negatively affect both egg and sperm health.
Testing and treating both partners, alongside supporting a healthy vaginal microbiome, is key for protecting fertility.
Introduction
When couples struggle to conceive or experience repeated miscarriage, hidden infections are often overlooked. One organism that is gaining increasing attention in fertility medicine is Ureaplasma. Although it commonly lives in the reproductive tract without symptoms, it can quietly create inflammation that interferes with conception, implantation, and pregnancy. Understanding what Ureaplasma is and how it affects fertility is an important step for anyone trying to conceive.
What is Ureaplasma?
Ureaplasma is a very small bacterium that can live in the urinary and genital tract of both men and women.
In women, it can be found in the vagina and also inside the uterus. In men, it can live in the urethra and reproductive tract. Unlike many bacteria, Ureaplasma does not have a cell wall. Because of this, it can be difficult to treat and may become resistant to certain antibiotics.
In many people, Ureaplasma causes no symptoms at all. It can exist quietly within the reproductive system for long periods. However, in some cases it can trigger infection or inflammation. When this happens, it may affect reproductive health and fertility outcomes.
How Ureaplasma Can Affect Fertility
Although Ureaplasma is common, its presence may disrupt the delicate balance of the reproductive environment.
One of the main concerns is inflammation. When Ureaplasma is present in the uterus, it can create an inflammatory environment that makes implantation more difficult. Inflammation inside the uterus may also increase the risk of miscarriage. A healthy uterine lining is essential for embryo development, and chronic inflammation can disrupt this process. In addition, Ureaplasma has been linked with an increased risk of ectopic pregnancy. This occurs when an embryo implants outside the uterus, often within the fallopian tube.
However, the impact of Ureaplasma is not limited to women. It can also affect male fertility. Research suggests that Ureaplasma may negatively impact sperm health. It has been associated with reduced sperm motility, lower sperm count, and increased DNA fragmentation. When sperm DNA becomes damaged, it can reduce fertilisation rates and increase miscarriage risk.
Furthermore, Ureaplasma may influence the immune system. In some individuals it can trigger an overactive immune response. For example, it may increase natural killer cell activity or promote a TH1 dominant immune response. Both of these immune patterns can interfere with embryo implantation. Because of these effects, Ureaplasma has also been associated with reduced success rates during IVF treatment.
The Link Between Ureaplasma and the Vaginal Microbiome
Another important factor is the vaginal microbiome. Ureaplasma often co-exists with bacterial vaginosis, commonly known as BV. Bacterial vaginosis occurs when beneficial Lactobacillus bacteria are reduced. At the same time, other bacteria become more dominant. This imbalance can create a less protective environment in the vagina. For example, BV may lead to symptoms such as a fishy smelling discharge or discomfort when urinating. However, many women with Ureaplasma do not experience these symptoms. This means the infection can easily go undetected for long periods.
Symptoms of Ureaplasma
One of the biggest challenges with Ureaplasma is that it often causes no symptoms. Many people only discover it during fertility investigations or vaginal microbiome testing. When symptoms do occur, they are usually mild and may resemble bacterial vaginosis. For example, some women may notice a fishy smelling vaginal discharge. Others may experience discomfort or pain when urinating. However, the absence of symptoms does not mean that Ureaplasma is harmless, and in many cases, it can still create inflammation that affects fertility.
Biofilms and Antibiotic Resistance
Another reason Ureaplasma can be difficult to treat is its ability to form biofilms. A biofilm is a protective layer created by bacteria. This layer helps them attach to tissues and protect themselves from antibiotics. Inside a biofilm, bacteria become much harder to eliminate and this can allow infections to persist even after treatment.
For this reason, many practitioners recommend combining antibiotics with a biofilm disrupting protocol. Supporting the body’s ability to break down biofilms may help improve treatment success and it may also reduce the risk of the infection returning.
Why Partner Treatment is Essential
Ureaplasma can pass easily between sexual partners. This means that if one partner tests positive, the other partner may also carry the bacteria. If only one person receives treatment, reinfection can quickly occur. For this reason, it is usually recommended that both partners are treated at the same time. This approach helps reduce the risk of the infection cycling back and forth between partners.
Reducing Your Risk
The first step in managing Ureaplasma is accurate testing. Testing is particularly important because symptoms are often absent. A vaginal microbiome test can identify Ureaplasma and assess the overall balance of bacteria in the vagina, and if Ureaplasma is detected, appropriate treatment can then be started.
It is also important to support healthy levels of protective bacteria such as Lactobacillus species help maintain an acidic vaginal environment that discourages harmful microbes.
You can support these bacteria through probiotics, fibre rich foods, and fermented foods. In addition, reducing exposure to toxins may help protect the vaginal environment. Some products commonly used around the vulva can disrupt the microbiome. For example, scented washes, perfumed products, and nylon underwear may increase irritation and inflammation. Similarly, some period products contain plastics and chemical additives, so choosing non-toxic alternatives may help support vaginal health. Brands that focus on safer materials include Flo, Daye, Dame, TOTM, and Natracare. Small changes like these can help maintain a healthier reproductive environment.
Conclusion
Ureaplasma is a common but often overlooked bacterium that can influence fertility, because it frequently causes no symptoms, many people are unaware they carry it. However, research suggests it may contribute to inflammation, miscarriage risk, sperm damage, and reduced IVF success. The good news is that testing and treatment can make a significant difference. By identifying infections early and supporting a healthy vaginal microbiome, it is possible to reduce risk and improve reproductive health.
Next Steps
If you are struggling to conceive, experiencing recurrent miscarriage, or preparing for IVF, it may be worth investigating your vaginal microbiome. Testing can provide valuable insights into hidden infections such as Ureaplasma. You can reach out via the contact form or explore my IVF nutrition resources to receive tailored, evidence based support through every stage of treatment. You can also join my newsletter for evidence based guidance and gentle emotional support.
Arrange a 1:1 session [via the contact form and we can work on a plan that supports you, whatever your situation and whatever you have been through.
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